机构地区: 浙江大学材料与化学工程学院硅材料国家重点实验室
出 处: 《真空科学与技术》 2002年第4期287-289,共3页
摘 要: 利用真空蒸发的方法在玻璃载片上沉积了 18烷基取代螺吡喃薄膜 ,并利用光吸收谱和光电子谱研究了薄膜的光致变色特性及变色前后分子结构的变化情况。实验结果发现 ,真空蒸发沉积的 18烷基取代螺吡喃薄膜具有良好的光致变色性能 ,在紫外光的照射下可以发生明显的光致变色反映。光电子谱分析 :经紫外线照射后 ,N1s、O1s光电子峰发生明显的变化 ,说明经紫外线照射后分子结构发生了变化 ,导致分子内部电荷的重新分布。另外紫外线照射后氧含量增加 。 SP18 films were fabricated by vacuum deposition on glass substrates.It is found that vacuum deposited SP18 films show good photochromic characteristics under UV exposure (254nm).XPS experiment results show that when exposed to UV light,changes were observed in O1 s ,N1 s photoelectron spectra,indicating that the molecular structure of SP18 changed.Increase in O1 s peak area was also found and is contributed to the increased wetting ability of the film after UV exposure,which results in the surface absorption of water vapor in air.